Question

Analyse the following statements and choose the correct option.

(i) Melamine is a plastic commonly used in kitchenware
(ii) Melamine is a cross-linked polymer just like bakelite
(iii) The effect of heat on melamine is the same as that on PET plastic
(iv) Melamine and Bakelite are good conductors of heat and electricity

• A. (i), (ii) and (iv)
• B. (ii), (iii) and (iv)
• C. (i) and (iii)
• D. (i) and (ii)

Answer 1

The correct option is D (i) and (ii)

1. Melamine is a versatile material. It resists fire and can tolerate heat better than other plastics. It is used for making kitchenware.

2. Melamine and bakelite are thermosetting plastics. Thermosetting plastics are cross linked polymers.

3. PET is a thermoplastic which means it softens on heating and can be re-moulded. On the other hand, melamine, a thermosetting plastic cannot be softened and re-moulded by heating.